I just heard Zombie by The Cranberries and I thought it would be a perfect song for Conor McGregor to come out to. That would be an epic entrance song, it starts somewhat slow and then by the time he's stepping into the octagon it's peaked. Plus, they're also Irish!
Some songs just match a fighter and their personality perfectly, like Matt Hughes and Country Boy Can Survive by Hank Williams Jr.
What say you UG?
That song would be better for TKZ. 
Lonesome rider - volbeat for Cerrone 
Nick Diaz - Cry Me a River
Logic MMA -
I ran (so far away)-Condit
kick in the door - Nate disz
horse outside http://youtu.be/ljPFZrRD3J8 - McGregor
Haha, I ran (so far away).
He really only ran that one fight though, he's normally a walk you down type figher.
Culture Club - 'Do you really want to hurt me'.
Korean Zombie comes out to Zombie, pretty sure that is one of those Dana would not let someone else use. I think this song would be a dope walk song for anyone, not juste because of the beginning either..even though that is awesome.
blue please.
https://www.youtube.com/watch?v=9rkUPTiDTTU
thesonsofmontana -Culture Club - 'Do you really want to hurt me'.
Classic
UGCTT_Blake - Korean Zombie comes out to Zombie, pretty sure that is one of those Dana would not let someone else use. I think this song would be a dope walk song for anyone, not juste because of the beginning either..even though that is awesome.
blue please.
https://www.youtube.com/watch?v=9rkUPTiDTTU
Now I feel stupid, I forgot TKZ came out to this.
Nick Diaz- Cuz I got high.
I was going to a conference until I got high
I was gonna call Dana but then I got high
I lost my title shot and I know why
(Why man?)
Because I got high, because I got high, because I got high
Skylar Grey - Final Warning. Cut out the first verse and it's a pretty good walkout song.
"This is your final warning, there's a dark cloud overhead
This is your final warning, just remember what I said
Someone's gonna get hurt
Na-na-na-na, na-na-na-na
Someone's gonna get hurt
Na-na-na-na
And it's not gonna be me"
"Why Can't We Be Friends" by War
Mobb Deep - Survival of the Fittest
Wu-Tang Clan - Da Mystery of Chessboxin'
Both tracks appropriate for any combat sport.
Power- Kanye
I'd like to hear the Intro to Conan the Barbarian as a walk out for Brock.